alleryदो 12 Ω प्रतिरोधक 12 V पर चलते हैं: पहले श्रृंखला में 1 मिनट के लिए, फिर समानांतर में 1 मिनट के लिए। कुल कितनी ऊर्जा का उपयोग किया जाता है?
A1800 J
B1080 J
C720 J
D1440 J
Answer & Solution
Correct answer: A. 1800 J
श्रृंखला चरण में (12²/24) × 60 = 360 J का उपयोग होता है और समानांतर चरण में (12²/6) × का उपयोग होता है
60 = 1440 J, कुल योग 1800 J.
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